package com.xiyoufang.club.utils;

import java.util.concurrent.ConcurrentHashMap;

public class UserMap extends ConcurrentHashMap {
   private static final long serialVersionUID = 1L;
   private static UserMap sessionMap;

   static final class Single {
      private  static final UserMap SESSION_MAP = new UserMap();
      private Single() {
      }
      // $FF: synthetic method
      static UserMap access$100() {
         return SESSION_MAP;
      }
   }


   public static UserMap getInstance() {
      if (sessionMap == null) {
         sessionMap =UserMap.Single.access$100();
      }

      return sessionMap;
   }


}
